1Y11

Mycobacterial adenylyl cyclase Rv1264, holoenzyme, active state


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.30 Å
  • R-Value Free: 0.299 
  • R-Value Work: 0.235 
  • R-Value Observed: 0.238 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

The structure of a pH-sensing mycobacterial adenylyl cyclase holoenzyme

Tews, I.Findeisen, F.Sinning, I.Schultz, A.Schultz, J.E.Linder, J.U.

(2005) Science 308: 1020-1023

  • DOI: https://doi.org/10.1126/science.1107642
  • Primary Citation of Related Structures:  
    1Y10, 1Y11

  • PubMed Abstract: 

    Class III adenylyl cyclases contain catalytic and regulatory domains, yet structural insight into their interactions is missing. We show that the mycobacterial adenylyl cyclase Rv1264 is rendered a pH sensor by its N-terminal domain. In the structure of the inhibited state, catalytic and regulatory domains share a large interface involving catalytic residues. In the structure of the active state, the two catalytic domains rotate by 55 degrees to form two catalytic sites at their interface. Two alpha helices serve as molecular switches. Mutagenesis is consistent with a regulatory role of the structural transition, and we suggest that the transition is regulated by pH.


  • Organizational Affiliation

    Biochemiezentrum der Universität Heidelberg, Im Neuenheimer Feld 328, 69120 Heidelberg, Germany. ivo.tews@bzh.uni-heidelberg.de


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Hypothetical protein Rv1264/MT1302407Mycobacterium tuberculosisMutation(s): 0 
Gene Names: Rv1264
EC: 4.6.1.1
UniProt
Find proteins for P9WMU9 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Explore P9WMU9 
Go to UniProtKB:  P9WMU9
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP9WMU9
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.30 Å
  • R-Value Free: 0.299 
  • R-Value Work: 0.235 
  • R-Value Observed: 0.238 
  • Space Group: P 62 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 114.114α = 90
b = 114.114β = 90
c = 151.771γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
CCP4data scaling
MOLREPphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2005-05-24
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Advisory, Derived calculations, Version format compliance
  • Version 1.3: 2024-03-13
    Changes: Data collection, Database references, Derived calculations
  • Version 1.4: 2024-04-03
    Changes: Refinement description